【Performance Characteristics】

1.Safe and Reliable:

·Intrinsically safe design for mining, explosion-proof display screen, suitable for flammable and explosive environments in mine shafts.

·Independent power supply for each operation box ensures safety during maintenance.

2.Powerful Functions:

·The operation box enables local control, data acquisition, transmission, and alarm functions.

·Features various operation buttons including knobs, push buttons, multi-position selector switches, and emergency stop switches.

3.Multiple Input/Output Channels:

·8 channels of passive contact signal input/output.

·12 channels of 4mA~20mA current analog signal input.

·9 channels of PT100 analog signal input.

4.Convenient Application:

·The operation box supports Ethernet optical/electrical signals, RS485 signals, and CAN signal transmission, facilitating network access.

·The 10.1-inch LCD touchscreen allows for easy human-machine interaction and operation.

【Product Parameters】

A.Power Supply

a) Rated Working Voltage: DC 12V; Max. Working Current: ≤1.0A;

b) Rated Working Voltage: DC 18V; Max. Working Current: ≤0.8A.

B. Input/output signals

a) 8-way passive contact signal input: When the input resistance is ≤ 300 Ω, corresponding logic "1", input resistance

When ≥ 90k Ω, the corresponding logic is "0";

b) 8-way passive contact signal output: when closed, inject 2mA, voltage drop not greater than 0.5V, when disconnected

The resistance shall not be less than 100k Ω.

c) 12 channels of 4-20 mA current type analog signal input;

d) 9-way resistance type analog signal input: corresponding to 100 Ω~138.5 Ω (0~100 ℃);

e) Analog input processing error: ≤ 1.0% (F.S.).

C. Ethernet electrical signal interface

a) Number of interfaces: 1 channel;

b) Transmission method: Full duplex, TCP/IP Ethernet signal transmission;

c) Transmission rate: 100Mbps;

d) Peak to peak value of signal voltage: ≤ 5 V;

e) Maximum transmission distance: 50 meters (using MHYV coal mine communication cable with a cross-sectional area of not less than

1.5mm2）。

D. Ethernet optical interface

a) Quantity: 2 routes;

b) Interface type: SC;

c) Transmission method: TCP/IP full duplex Ethernet optical signal transmission;

d) Transmission rate: 1000 Mbps;

e) Light emission power: -10~0dBm; (1310nm, single-mode dual fiber)

f) Receiver sensitivity: -25dBm; (1310nm, single-mode dual fiber)

g) Maximum transmission distance: 10km. (Using MGTSV single-mode optical cable; There are a total of 8 fiber optic contacts,Among them, there are 3 hot melt joints, 3 cold melt joints, and 2 movable connection points.

E. RS485 signal interface

a) Quantity: 1 route;

b) Transmission mode: half duplex, bipolar;

c) Transmission rate: 9600 bps;

d) Peak to peak voltage of signal operation: 2V to 12V;

e) Maximum transmission distance: 1km (MHYV 1.5mm2 mining communication cable).

F. CAN signal interface (Mine Hong controller)

a) Quantity: 1 route;

b) Transmission mode: half duplex, bipolar;

c) Transmission rate: 5kbps;

d) Peak to peak voltage of signal operation: 1V to 5V;

e) Maximum transmission distance: 3km (MHYV 1.5mm2 mining communication cable).

G. Function

a) The operation box has 32 button signals; 4-channel three gear selection button signal; 1-channel eight speed knob signal;

1 emergency stop button signal;

b) The operation box has 8 channels of passive contact signal input and output, and 12 channels of 4mA~20mA current type analog signals

Signal, 9-channel PT100 analog signal input;

c) The operation box has the function of transmitting Ethernet optical/electrical signals, RS485 signals, and CAN signals;

d) The operation box has a 10.1-inch LCD display screen, which displays the status of various input and output signals.

H. Intrinsic safety parameters:

a) 12V input terminal (4 channels, not common ground): Ui: 12.5V, Ii: 1.5A, Ci: 0 µ F, Li: 0 µ H.

b) 18V input terminal: Ui: 18.5V, Ii: 0.9A, Ci: 0 µ F, Li: 10 µ H.

c) Electrical signal terminal: Uo: 6.1V, Io: 310mA, C0: 10 μ F, Lo: 0.2mH.

d) RS485, CAN signal terminal: Uo: 5.88V, Io: 100mA, C0: 20 µ F, Lo: 5mH.

【Product Qualifications】